 | | Journal (issue) | | mines, Kalahari Manganese Field, Northern Cape Province, South Africa ..................................crystals on matrix, 17.2 cm, from the N’Chwaning I mine, collected in 1978. Private collection and photographer...(2015–2016) Scott A. Rudolph Paradise Woods (2008–2016) John Dabney (2015–2016) Daniel J. Record Irv Brown (2009–2015)...(2016–2017) Eric D. Long Barry M. & Beth Kitt (2011–2016) John Schneider (2016) Dylan Stolowitz Steve Maslansky...com APATITE Nagar, Hunza Valley, Gilgit District, Northern Areas, Pakistan, 11.5cm. Fine Minerals International |  | | Report (issue) | | SURVEY OF SOUTH AFRICA COUNCIL FOR GEOSCIENCE GEOLOGICAL SURVEY OF SOUTH AFRICA MINERALOGY OF SOUTH AFRICA:... COUNCIL FOR GEOSCIENCE GEOLOGICAL SURVEY OF SOUTH AFRICA Scientific Editor R.D. Dixon Linguistic and...Council for Geoscience (Geological Survey of South Africa), 280 Pretoria Street, Silverton, Pretoria or........................... 69 5.1 Overview of South African Occurrences ..............................LAYEREDSUITE,BUSHVELDCOMPLEX.... 111 MINERALOGY OF SOUTH AFRICA: TYPE-MINERAL SPECIES AND TYPE-MINERAL NAMES |  | | Journal (issue) | | 85741 Editor & Publisher Wendell E. Wilson Founder John Sampson White Associate Editors Pierre Bariand Sorbonne...Zeolites and associated minerals from the Palabora mine, Transvaal........................................& R. S. W. Braithwaite The Lake George antimony mine, New Brunswick ..................... 263 by W. E...Kalahari m an g an ese field, C ape Province, South Africa. (See th e article in this issue, b eg in n...d e r n M in e r a l C o l l e c t io n CURATION John Sampson White Department of Mineral Sciences Smithsonian |  | | Journal (article/letter/editorial) | | pluton, La Vallée-du-Richelieu Regional County Municipality, Montérégie, Québec, Canada, is part of the...(better known to collectors as the Kola Peninsula), northern region, Russia (Pekov 2000). The massif is a layered...minerals. The Shkatulka pegmatite in the Umbozero mine (now flooded), Alluaiv Mountain, has produced the...In the Sirenevaya pegmatite, also in the Umbozero mine, serandite occurs as clusters of semiparallel yellowish-pink...the Kedykverpakhk Mountain area of the Karnasurt mine, a remarkable assemblage of rare minerals has been |  | Moore, John M., Kuhn, Barbara K., Mark, Darren F., Tsikos, Harilaos (2011) A sugilite-bearing assemblage from the Wolhaarkop breccia, Bruce iron-ore mine, South Africa: Evidence for alkali metasomatism and 40Ar-39Ar dating. European Journal of Mineralogy, 23 (4) 661-673 doi:10.1127/0935-1221/2011/0023-2117 | Journal (article/letter/editorial) | | Bruce iron-ore mine, South Africa: Evidence for alkali metasomatism and 40Ar-39Ar dating JOHN M. MOORE1,...Geology, Rhodes University, Grahamstown 6140, South Africa *Corresponding author, e-mail: h.tsikos@ru.ac...breccia at the Bruce iron-ore mine, Northern Cape Province, South Africa. The upper portion of the breccia...breccia is dominated by braunite, albite, K-feldspar and aegirine, and locally hosts irregular-shaped void-fills...Similarities to sugilite-bearing assemblages at the Wessels mine in the Kalahari Manganese Field suggest that |  | | Report (issue) | | “deep” galleries loaded with fine specimens, fine Joe Budd photos of same, and much documentary information...the following page) from the open-pit magnesite mine at Podrečany, Czechoslovakia (now just Slovakia)...Banská Bystrica, Slovakia. Arkenstone specimen; Joe Budd photo. Sodalite, 5 cm, from Sar-e-Sang, Badakhshan...Badakhshan Province, Afghanistan. Arkenstone specimen; Joe Budd photo. 2 ================================...5 cm, from Tsumeb, Namibia. Arkenstone specimen; Joe Budd photo. More to the “what’s new” point, Rob |  | | Journal (article/letter/editorial) | | Johannesburg, South Africa brucec@uj.ac.za SUGILITE Wessels Mine, Kalahari Manganese Field Northern Cape Province...Province, South Africa P urple is a relatively uncommon color in the mineral world, and one of the most...Kalahari manganese field in South Africa and in one mine in particular, the Wessels mine (Dixon 1985). If it...it were not for the South African deposits, sugilite would be considered a rare mineral. Sugilite, KNa(Fe2+...History in Washington, D.C. The Wessels mine sugilite in South Africa sets the benchmark for sugilite |  | | Journal (issue) | | affiliated with the Friends of Mineralogy publisher John S. White Division of Mineralogy The Smithsonian...Arthur Roe Famous Mineral Localities: The Brumado District, Bahia, Brazil..................................Thomssen, Walt Risch, Star Northam, Carolyn Wilson, John Muntyan and Wayne DeBrusk assisted with record keeping...Brazil) Pierre and Nellie Bariand (Paris, France) F. John Barlow (Appleton, WI) Ron Bentley (Windsor, CT)...Cureton, David Wilber, Miguel Romero, Richard Webster, John Barlow and Rustam Kothavala made cash donations |  | Gutzmmer, J., Beukes, N. J., Kleyenstuber, A. S. E., Burger, A. M. (1995) Magnetic hausmannite from hydrothermally altered manganese ore in the Palaeoproterozoic Kalahari manganese deposit, Transvaal Supergroup, South Africa. Mineralogical Magazine, 59 (397) 703-716 doi:10.1180/minmag.1995.059.397.12 | Journal (article/letter/editorial) | | Kalahari manganese deposit, Transvaal Supergroup, South Africa J. GUTZMER,N. J. BEUK~S Department of Geology...University, P.O.Box 524, Auckland Park 2006, South Africa A. S. E. KLEYENSTUBERANDA. M. BURGER MINTEK...MINTEK, Private Bag X3015, Randburg 2125, South Africa Abstract Hausmannite (Mn304), a manganese oxide with...ores of the giant Kalahari manganese deposit in South Africa. EDS-electron microprobe analyses indicate magnetic...KEYWOm3S:hausmannite, Kalahari manganese field, Wessels mine, ferrimagnetism, iron content. Introduction |  | | Journal (article/letter/editorial) | | Deposit—Kalahari Manganese Ore Field (Northern Cape, South Africa): Geochemistry of Isotopes (δ13C and...carbonate inclusions in the Mamatwantype oxide ores (braunite lutites) made it possible to reveal residual microbial...1134/S0024490212030054 The Northern Cape manganese ore province (South Africa) is confined to the Kalahari...field under operation (Mamat wan, Black Rock, Wessels, Gloria, and others) have been scrutinized, the...of ore material in slightly altered manganese (braunite) lutites taken from the Mamatwan deposit, the |  | | Journal (article/letter/editorial) | | Ettringite N’Chwaning II Mine, Northern Cape Province Republic of South Africa C oncrete, that manmade...N’Chwaning II mine, Kalahari manganese field, Northern Cape Province, Republic of South Africa. This specimen...to 2 mm, some associated with calcite. The Clara mine, Ober Wolfach, Schwarzwald (Black Forest), Baden-Württemberg...(1984) notes that ettringite crystals from the Clara mine may be mistaken for aragonite, and vice versa. Italy...N’Chwaning II mine, Kalahari manganese field, Northern Cape Province, Republic of South Africa. Scott Rudolph |  | | Journal (article/letter/editorial) | | Mineralization in the Kalahari Manganese Field, South Africa D. A. D. EVANS,† Tectonics Special Research...University, Auckland Park 2006, Johannesburg, South Africa AND J. L. KIRSCHVINK Division of Geological...enrichment in the Kalahari manganese field, South Africa, in order to assess mineralogical aspects of...hematite (20–250 µm), within both Mamatwan- and Wessels-type ore, generates a paleomagnetic pole (present...sample suite (WESS) is restricted to high-grade Wessels-type ore, rich in high Fe hausmannite and coarser |  | | Journal (article/letter/editorial) | | PO Box 524, Auckland Park 2006 Johannesburg, South Africa brucec@uj.ac.za Lucas Becker photo. T Jacobus...N’Chwaning III mine in the Kalahari manganese field, Northern Cape Province, South Africa. Crystals are...purple sugilite crystals, white pectolite, lipuite, braunite-II, hematite, and microscopic namansilite and...180 ROCKS & MINERALS aniajacoite is named after South African married couple Jacobus “Jaco” Stephanus...Heidelberg in what was then the Transvaal Province, South Africa, and grew up on a farm located between Bethal |  | Fairey, Brenton J., Timmerman, Martin J., Sudo, Masafumi, Tsikos, Harilaos (2019) The Role of Hydrothermal Activity in the Formation of Karst-Hosted Manganese Deposits of the Postmasburg Mn Field, Northern Cape Province, South Africa. Minerals, 9 (7) 408 doi:10.3390/min9070408 | Journal (article/letter/editorial) | | Deposits of the Postmasburg Mn Field, Northern Cape Province, South Africa Brenton J. Fairey 1,† , Martin J...Geology, Rhodes University, Grahamstown 6139, South Africa Correspondence: h.tsikos@ru.ac.za Current address:...Postmasburg Manganese Field (PMF), Northern Cape Province, South Africa, once represented one of the largest...Postmasburg manganese field; hydrothermal; karst; South Africa Minerals 2019, 9, 408; doi:10.3390/min9070408...(KMF), the Postmasburg Manganese Field (PMF) was South Africa’s largest producer of this important component |  | | Journal (article/letter/editorial) | | manganese ore in the Kalahari manganese ®eld, South Africa Received: 28 May 1996 / Accepted: 22 January...Mamatwantype ore is altered to high-grade oxide-rich Wessels-type ore in association with normal faults. Mass...manganese ®eld (Fig. 1) highgrade hausmannite-rich Wessels-type ore (KleyenstuÈber 1984) formed as a product...sedimentary braunite-rich Mamatwan-type ore along a series of normal faults in the Wessels-Nchwaning and...35±38 wt.% in original sedimentary carbonate-rich braunite lutite to values of 45±60 wt.% in carbonate-poor |  | | Journal (article/letter/editorial) | | University RO. Box 524 AucWand Park, 2006 Gauteng, South Africa . . .*.’. Corresponding author: bc @na.rau...just south of the great Kalahari Desert on the vast plains of the Northern Cape Province of South Africa...of the Transvaal Supergroup rocks (black) in South Africa. B: Enlarged portion of Griqualand West showing...and one of the few economic centers of the Northern Cape Province. Kuruman is also the preferred home...live in the mine villages of Hotazel and Black Rock. These were established by SAMANCOR (South African Manganese |  | | Journal (article/letter/editorial) | | phaserelationsinvolvemajoroxideminerals of the ores,namely,braunite,brauniteII, hausmannite, bixbyite,jacobsite,andhematite...hydrothermalsolutionsinto the high-grade,high-temperature Wessels-type oresconsistingof brauniteII, bixbyite,hausmannite...brauniteis muchlessabundant in the high-grade Wessels-type ore thanin theIgw-grade Mamatwan-type ore...reactingwith silica released from braunitc to form braunite II and andradite. Introduction THE Kalaharimanganese...ProterozoicTransvaalSupergroup in the northern Cape Province, South Africa (Fig. 1A),mostprobablyrepresents |  | Gu, Xiangping, Yang, Hexiong, Xie, Xiande, van Nieuwenhuizen, Jaco J., Downs, Robert T., Evans, Stanley H. (2019) Lipuite, a new manganese phyllosilicate mineral from the N'Chwaning III mine, Kalahari Manganese Fields, South Africa. Mineralogical Magazine, 83 (5) 645-654 doi:10.1180/mgm.2019.12 | Journal (article/letter/editorial) | | mineral from the N’Chwaning III mine, Kalahari Manganese Fields, South Africa Xiangping Gu*1 , Hexiong Yang2...School of Geosciences and Info-Physics, Central South University, Changsha, Hunan 410083, China; 2Department...and 4Plot 968, Alheit, Kakamas 8870, Northern Cape, South Africa Abstract A new phyllosilicate mineral...N’Chwaning III mine, Kalahari Manganese Fields, Northern Cape Province, Republic of South Africa. It occurs...Kalahari Manganese Fields in the North Cape Province of South Africa hosts the largest manganese resource |  | | Journal (article/letter/editorial) | | primary sedimentary Mamatwan-type ore to high-grade Wessels-type ore took place along a system of normal fimlts...in the northwestern part of the KMF. High-grade Wessels-typc ore (Fig. 1B) is developed immediately adjacent...versus areas dominated by hydrothermally altered Wessels-type ore. Cornell and Schiitte (1995) either ignore...of the Hotazel Formation, are only known from Wessels-type ore (so clearly they are mixing as it were...Hydrothermally altered Wessels-type ore, consisting predominantly of braunite II, hausmannite and hematite |  | | Journal (article/letter/editorial) | | Department of Geology, University of Johannesburg, South Africa e-mail: nickvafeas@gmail.com; ljolly@uj.ac.za;...Meffre@utas.edu.au © 2018 June Geological Society of South Africa. Abstract The manganese ore of the Hotazel...least two other well-recognised ore types, namely Wessels-type (affected by hydrothermal alteration only)...a finegrained braunite I and kutnohorite matrix (Kleyenstüber, 1984; 1985). The Wessels-type ore is a...a high-grade, braunite II- and bixbyite-rich, carbonate-poor equivalent of the Mamatwan-type ore, and |  | | Journal (article/letter/editorial) | | oxymica associated with sugilite from the Wessels Mine, South Africa: Crystal chemistry and 40Ar-39Ar dating...silicate-rich sample from the Wessels mine, Kalahari manganese field, South Africa. The mineral forms centimeter-sized...submarine exhalative origin of the Hoskins mine in New South Wales, Australia (Ashley 1986; Eggleton and...Mn-rich alkali amphiboles, manganoan pectolite, braunite, carbonates, feldspar, and less commonly with...occurring in pockets in the Wessels mine, Kalahari Mn field, South Africa (e.g., Cairncross et al. 1997) |  | | Journal (article/letter/editorial) | | Department of Geology, University of Johannesburg, South Africa University College Dublin (UCD) School of Earth...Department of Geology, University of Johannesburg, South Africa e-mail: ljolly@uj.ac.za; fanusv@uj.ac.za P....University of Cape Town, South Africa e-mail: petrus.leroux@uct.ac.za © 2019 Geological Society of South Africa...classic supergene enriched, hydrothermally enriched (Wessels-type ore) and thrusted manganese ore. When normalised...“Diagenetic ore”; and the high-grade, low-carbonate Wessels-type ore. Displaying numerous kutnohorite (Ca(Mn2+ |  | | Journal (article/letter/editorial) | | minerals(Hew- portant contributionshave been made by John de ett and Fleischer,1960), and the GriqualandWest...0861-0128/88/192/1108-1152.50 Mn DEPOSITS, SOUTH AFRICA 1109 Geologic Framework .• •:•:•:•:•:•:•:•:•:•...Stellenbosch). 1110 j. E. DE VILLIERS proximatelynorth-south,and regionalshearingand (includingmetamorphic deposits)...and these cryptomelane,psilomelane,hollandite,braunite,and youngdepositshavegreatlyhamperedthe searchfor...Morocco,for instance,hausmanniteand janekke,70 km south-southwest of Postmasburg. It was cobsiteoccurin |  | | Journal (article/letter/editorial) | | Enrichment in the Kalahari Manganese Field, South Africa: A new discrimination scheme for Kalahari manganese...Department of Geology, University of Johannesburg, South Africa University College Dublin (UCD), School of Earth...Mamatwan Mukulu Hydrothermal Supergene Unconformity Wessels The Thrusted manganese ore above the Blackridge...Manganese Field, South Africa has undergone three significant alterations events, namely the Wessels alteration...Mamatwan-type manganese ore from Mamatwan mine in the south of the Kalahari Manganese Field as a reference |  | Kawachi, Y., Ashley, P. M., Vince, D., Goodwin, M. (1994) Sugilite in manganese silicate rocks from the Hoskins mine and Woods mine, New South Wales, Australia. Mineralogical Magazine, 58 (393) 671-677 doi:10.1180/minmag.1994.058.393.18 | Journal (article/letter/editorial) | | manganese silicate rocks from the Hoskins mine and Woods mine, New South Wales, Australia Y. KAWACHI Geology...localities, the Hoskins and Woods mines in New South Wales, Australia. The occurrences are in manganese-rich...greenschist facies (Hoskins mine) and hornblende hornfels facies (Woods mine). Coexisting minerals are...series, Mn-rich alkali amphiboles, alkali feldspar, braunite, rhodonite, tephroite, albite, microcline, norrishite...Woods mine sugilite is colour-zoned with pale mauve cores and colourless rims, whereas Hoskins mine sugilite |
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Wessels Mine, Joe Morolong Local Municipality, John Taolo Gaetsewe District Municipality, Northern Cape, South Africa